Mounting for multiple glazing units



D. E. SHARP MOUNTING FOR MULTIPLE GLAZING UNI'iS Jan. 11, 1955 2 Sheets-Sheet 1 Filed May 2, 1952 Jan. 11, 1955 v SHARP 2,698,975

MOUNTING FOR MULTIPLE GLAZING UNITS Filed May 2, 19,52 2 Sheets-Sheet 2 y 2,698,975 MoUNTINoFoR MULTIPLE GLAZING UNITS A piicnan May 2, 1952, Serial No. 285,590

; 13 Claims. (Cl. 20-565 The present invention relates broadly to the art of glazing and more particularly to a new and improved frame designed for the mounting of multiple glass sheet glazing units in conventional and existing window sashes.

It is an important object of the invention to provide novel means for mounting multiple sheet insulating units whereby the edges of said units are adequately protected during handling and installation thereof, and by which the desired amount of cushioning protection is granted to the units when glazed in window openings.

Another object of the invention is in the provision of a novel frame or mounting for multiple glass sheet glazing units by means of which relatively expensive grinding and polishing of the edges of the units is avoided and a neat and attractive appearance is imparted to the units.

Another object of the invention is to provide a frame of novel construction for multiple glass sheet glazing units, which frame provides means for glazing said units in existing and conventional sash constructions and which may be inexpensively fabricated and readily assembled on the units.

A further object of the invention is to provide a substantially rectangular frame or mounting of relatively light weight for use with a multiple glass sheet glazing unit of all-glass construction, said frame being shaped to provide a recess of general channel-shape cross section within which the edges of the unit are received, said frame being further shaped to provide a portion in cushioning contact with the sash.

A still further object of the invention is to provide a metallic frame or mounting designed for use in glazing a multiple sheet insulating unit of all-glass construction, said frame being of substantially Y-shaped cross section and enclosing the marginal sides and edges of the unit in a manner whereby the arms of the Y are in contact with said sides and edges of the unit, and the leg of the Y is in cushioning engagement with the sash to provide a lip against which glazing material may be located.

Other objects and advantages of the invention will become more apparent during the course of the following description when taken in connection with the accompanying drawings.

In the drawings wherein like numerals are employed to designate like parts throughout the same:

Fig. l is a perspective view of a typical window showing a. plurality of multiple glass sheet glazing units carried in a frame of this invention;

Fig. 2 is a vertical section taken substantially along the line 22 of Fig. 1;

Fig. 3 is a vertical section showing a plurality of glazed frames mounted in a conventional metal sash;

Fig. 4 is a fragmentary perspective view of a framed multiple sheet glazing unit, one section of the frame being elevated therefrom to show the mitered corner con struction;

Fig. 5 is a fragmentary view of the corner construction of the frame;

Fig. 6 is a vertical section of a modified form of frame with a glazing unit carried therein;

Fig. 7 is a perspective view of members of the moditied frame; and

Fig. 8 is a fragmentary view of the corner construction of the modified frame.

With reference now to the drawings, and particularly to Figs. 1 to 5 wherein is shown a preferred form of the invention, there is illustrated a multiple glass sheet glazing unit A of all-glass construction comprising two or more States. Patent 0 "cc 2,698,975 Patented Jan. 11, 1955 glass sheets 10 and 11 maintained in spaced relation adjacent the edges thereof by a diagonally disposed end seal 12 which integrally bonds said sheets into a unitary structure and provides therebetween an hermetically sealed air chamber 13. A unit of this type, which provides a permanently satisfactory structure for reducing heat transfer and reduces, if it does not prevent, condensation of moisture upon glass in glazed openings, may be mounted in a variety of existing or new sash constructions by utilizing the novel glazing frame of the present inventron.

There is thus illustrated in Fig. 1 a conventional wooden double-hung sash 14 carried in a window frame 15 comprising opposite vertical members 16 and sill 17. As shown, the double-hung sash 14 comprises a lower sash 18 formed of a top rail 19, bottom rail 20, and side rails 21, and an upper sash 22 comprising two panes 23 and 24 composed of side rails 25, bottom rails 26 and top rails (not shown).

The construction of the sash rails may be seen in Fig. 2, and upon reference thereto it will be noted that the bottom sash rail 20 is of the normal rabbeted type and is provided with a slightly sloped bed 27 and stop 28 extending perpendicularly from the plane of the rail. As is well known, the bed or bearing surface 27 provides a seat for the glass in single glazing and a bevel of putty is located against the outer surface of the glass edge to hold the inner surface of glass against the other bearing surface or stop 28. Such an arrangement normally provides a rattle-free construction and prevents air and moisture from entering around the glass edges.

However, the comforts and advantages resulting from the use of multiple sheet glazing units are daily becoming more apparent to a larger number of home owners and other members of the public. And since in many instances the prospective purchaser of double glazing units is unwilling to incur the additional expense of having installed new sash particularly designed for such units, it is apparent that means which will permit the expeditions installation of multiple sheet units in existing sash constructions possesses considerable utility and allows a larger segment of the population to receive the benefits of multiple glazing at minimum expense.

This and other desirable objects and advantages are accomplished by the provision of a channel-like frame or mounting of the type shown in the drawings. Various metallic and resinous materials may be utilized in the fabrication of the mounting, however, a relatively light and semi-resilient yet substantially rigid metal such as aluminum or stainless steel is preferred.

As illustrated in Figs. 1. to 5, the mounting or frame, generally designated by the numeral 29, may be fabricated substantially in the configuration of a Y in cross section and as thus formed comprises generally a pair of arms 30 and 31 which merge into a leg 32. Upon particular reference to Figs. 2 and 3, it will be noted that the arms 30 and 31 do not possess the same identical shape or length, but rather, that the arm 30 is bent to provide a relatively short section or flange 33 and a relatively longer angularly disposed section or yoke 34 which joins said flange 33 to the other arm 31. Such an arrangement provides continuous engagement between the edge portions of the glazing unit A and the flange 29. That is to say, the flange 33 is disposed along the marginal side of the outer glass sheet 10 and extends a short distance thereon, while the arm 31 extends inwardly on the inner glass sheet 11 a sufficient distance so that the inner edges of the flange 33 and arm 31 are on line with each other. In addition, the end seal 12 which joins the marginal edges of the glass sheets 10 and 11 is protected and contacted by the angularly disposed section 34 of the arm 30. If desired, a suitable adhesive 35 may be employed to secure the frame 29 to the edges of the unit A.

As noted previously, a frame of the above construction is particularly designed and adapted for the glazing of multiple glass sheet insulating units in existing sash constructions. A unit A carried in the frame 29 is shown in Fig. 2 mounted in a conventional wooden sash 14. Upon reference thereto it may be seen that the leg 32 of the frame is positioned at the point of intersection of the bed 27 and stop 28 and is in parallel abutting relation with the stop 28 of the lower sash 18. In addition, it will be noted that said leg or extended portion 32 provides a lip against which may be located a bevel of putty 36 positioned between the yoke 34 of the frame 29 and sloped bed 27 of said lower sash 18. The bevel of putty is substantially entirely disposed beneath the yoke 34, and yet by virtue of its somewhat triangular shape, exerts sufficient pressure against the yoke and leg 32 extending outwardly from the vertical arm 31 to maintain said leg against the vertical stop 28 and the unit A inwardly of the outer surface of the sash. To further assure that the unit A will remain relatively immobile with respect to the sash, glaziers points 37 or other suitable means may be driven into the sash at intermittent points therealong and in angled contact with the lip provided by the leg 32 of said frame 29.

It may thus be seen that not only is a neat and attractive frame provided which adequately holds the unit in the desired position, but the frame herein disclosed allows a multiple sheet glazing unit to be installed in an existing sash Without modification or replacement of the latter. Since a single pane of glass is normally located against the sash stop and the bead of putty placed against the opposite surface of the sheet in beveled relation to said surface and the bed of the sash, and since the major portion of the putty employed in accordance with the present invention is positioned beneath the frame itself, it is apparent that a unit of the type disclosed extends no further outwardly of the stop on the sash than a single glass pane. In fact, the frame or mounting 29 has an overall thickness which is actually less than the depth of the bed or bearing surface 27.

An all-glass multiple glass sheet glazing unit carried in a frame of the type above described is shown in Fig. 3 mounted in a typical metal sash construction. It will be noted that the unit A and frame or mounting 29 possess the same structural characteristics in each of the embodiments of the invention illustrated in Figs. 2 and 3, and for this reason, the description of each in connection with Fig. 2 is considered sufficient for the present purpose.

Upon reference to Fig. 3 it will be noted that the metal sash 38 is substantially T-shaped in cross section and comprises a web member 39 and a pair of flange members 46 and 41 extending laterally from said Web member. it will be further noted that the leg 32 is positioned at the point of intersection of the web member 39 and members 40 and 41 and that said leg and a portion of the arm 31 of the frame are in parallel contact with the bearing surfaces provided by each flange member 40 or 41. A roll of putty 36 is preferably beveled into the space bounded by the yoke 34, leg 32 and web member or hearing surface 39, to maintain the leg 32 against the flange members 40 and 41 and the unit A spaced inwardly of the outer surface of the sash. As noted above, adhesive 35 may be used to secure the unit A to the frame 29, and as shown in Fig. 3, spring clips or other suitable means 42 may be used to further maintain the leg or extended portion 32 of the frame against each of the flange members 40 01-41 of the sash 38.

In the assembly of the frame 29 on the multiple glass sheet glazing unit A, a plurality of frame sections 43 are provided and assembled on the unit substantially as shown in Figs. 4 and 5. The sections 43 are cut to lengths slightly in excess of the length of each side of the unit A and each section is mitered at opposite ends for cooperative engagement with adjacent sections. Adhesive may be provided, if desired, to secure the frame sections to the marginal edges of the unit A although such means may generally not be necessary since the arms 30 and 31 of the frame 29 will exert a clamping action on the marginal sides of said unit. After the four frame sections 43 are assembled on the unit, said unit may be installed in the sash and a suitable putty or mastic and glaziers points or spring clips inserted, as the situation may warrant. Since it is contemplated that in each case the framed unit will fit snugly in the sash, it will normally not be necessary to secure each frame section 43 to its adjacent companion member. However, spot soldering or welding or other suitable means may be employed at the mitered ends of the sections 43 to preclude the possibility of separation between said ends during constant use of the glazed units.

To save time during installation of the frame or mounting it may be desirable to provide one frame section of a length corresponding to the combined length of three marginal edge of the unit in engagement with the opposite ends of the relatively longer frame section. ."hus, the latter section may be cut at an angle at locatons corre-' sponding to the corners of the unit and Him bent onto said unit so that the flanges or legs of thr frame section will fit together in the manner of a mitired joint. The relatively short section may then be locaed on the other marginal edge of the unit and locked to be longer section by suitable means such as welding or stldfillllg or a clip, such as of the bayonet type.

A modified type of frame is shown in gS-, 0 8, and upon reference thereto it will be seen that One-point of difference between this frame and the one abtye described is in the elimination of the leg or extended potion froin ing unit A. The relatively longer leg 46 is in parallel contact with the marginal side of the inner glass sheet 11 and a portion of said leg abuts against the stop or bearing surface 48 of the sash 49 and is positioned at the point of intersection of said step and bed 50. The base section 47 extends in a diagonal manner between the relatively short leg 45 and relatively longer leg 46, and there is disposed beneath said section and in contact with the bed or bearing surface 50 of the sash 49 a suitable amount of putty or mastic 51 formed into a wedge shape. By virtue of its particular shape, the wedge of putty 51 serves to maintain the framed unit against the stop 48, and specifically, the corner formed by the leg 46 and base section 47 is kept in place in the apex provided by juncture of the stop 48 and sash bed 50.

Functioning to further maintain the frame 44 in rigid position with respect to the sash and inserted substantially parallel to the diagonal base section 47 of said frame are a plurality of nails or other suitable means 52 wedged into the sash 49 at a plurality of points along its length. As above noted, the frame 44 may be secured to the glazing unit A by means of an adhesive or cement 53, although such means may frequently not be necessary. The sections 54 comprising the frame 4-4 are mitered at opposite ends in the manner above described with reference to the frame 29, and said sections are assembled on the unit in substantially the same manner.

Although the frame 29 earlier described is preferable in many installations because of the increased wcdging action provided by the relatively greater amount of putty or mastic used therewith, the modified frame 44 is of advantage in fixed sash construction due to a somewhat reduced cost and the granting of a slightly larger available window area. Aside from these features, the frame 44 possesses substantially the same advantages as the first disclosed frame 29. And it will of course be appreciated that a frame or mounting of the type shown in Fig. 6 may be effectively employed in a metal sash of the general construction illustrated in Fig. 3. The mounting 44, as Well as the mounting 29, has the prime advantage of permitting the use of multiple glass sheet glazing units in existing sash constructions, whether they be wood or metal, and accordingly, grants to the home owner the many advantages derived from the use of multiple glazing at the minimum cost to said owner. Further, the edges of the unit A, and particularly the end seal 12 thereof, are adequately cushioned and protected against breakage by a frame which not only facilitates handling and installation of the unit, but also grants a neat and attractive appearance to said unit.

It is to be understood that the forms of the invention herewith shown and described are to be taken as the preferred embodiments of the same, but that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoincd claims.

I claim:

1. Means for mounting a multiple glazing unit in a sash having substantially perpendicularly arranged bearing surfaces comprising, a frame of generally channel shape cross section disposed in overlapping relation to the marginal edges of the unit, said frame having a portion posii tioned against ne of said sash bearing surfaces and spacing the unit from the other of the bearing surfaces to provide betw en the frame and said latter bearing surface a recess herein glazing material may be located.

2. Means for ounting a multiple glazing unit in a sash having substeEgially perpendicularly arranged bearing surfaces comprisin a frame of generally channel shape cross sectiondisposed in overlapping relation to the marginal edges of the li it, said frame having a portion positioned at the point of intersection of said sash bearing surfaces and spacin the unit from one of said bearing surfaces, and means located between the frame and the other of said bearin surfaces and maintaining the unit spaced inwardly of th outer surface of the sash.

3. In, combination with a multiple glass sheet glazing unit having at least two sheets of glass maintained in spaced "relation by a diagonally disposed integral end portion, a substantially rectangular mounting member of general channel shape cross section arranged in overlapping relation to at least one of the marginal edges of the glazing unit, said member being provided with a leg and a base section, said leg being in parallel contact with one of the side edges of the unit and said base section being in substantial parallel contact with the end portion of the unit.

4. In combination with a multiple glass sheet glazing unit having at least two sheets of glass maintained in spaced relation by a diagonally disposed integral end portion, a substantially rectangular mounting member of general U-shape cross section arranged in overlapping relation to the marginal edges of the glazing unit, said member being provided with a pair of legs of unequal length and a base section extending between said legs, each of said legs being in parallel contact with one of the side edges of the unit and the base section being in substantial parallel contact with the end portion of the unit.

5. In combination with a multiple glass sheet glazing unit having at least two sheets of glass maintained in spaced relation by a diagonally disposed integral end portion, a substantially rectangular mounting member of general Y-shape cross section arranged in overlapping relation to the marginal edges of the glazing unit, said member being provided with a pair of arms of unequal length and a leg extending outwardly from the point of juncture thereof, one of said legs having a section contacting one of the side edges of the unit and another section disposed in substantial parallel contact with the end portion of the unit.

6. In a window sash construction having a bed portion and stop extending perpendicularly therefrom, a multiple glass sheet glazing unit mounted therein, and a substantially rectangular frame of general Y-shape cross section retaining the unit within the sash, the arms of the Y being disposed in overlapping engagement with the marginal edges of the unit and the leg of the Y being positioned against the sash stop and spacing the unit from the sash bed portion to provide a recess wherein glazing material may be located.

7. In a window sash construction having a bed portion and stop extending perpendicularly therefrom, a multiple glass sheet glazing unit mounted therein, and a substantially rectangular frame of general Y-shape cross section retaining the unit within the sash, said frame comprising a pair of arms of unequal length within which the unit is carried and a portion extending from said arms and contacting the sash stop and bed portion to provide a recess between said portion and one of said arms, said latter arm having a relatively short section engaging the marginal edge of the unit and a relatively longer section arranged against the ends of said unit, said frame having an overall thickness not greater than the depth of the bed portion.

8. In a window sash construction having a bed portion and stop extending perpendicularly therefrom, a multiple glass sheet glazing unit mounted therein, a substantially rectangular frame of general Y-shape cross section retaining the unit within the sash, said frame comprising a pair of arms of unequal length within which the unit is carried and a portion extending from said arms and contacting the sash stop and bed portion to provide a recess between said portion and one of said arms, said latter arm having a relatively short section engaging the marginal edge of the unit and a relatively longer section arranged against the ends of said unit, said frame having an overall thickness not greater than the depth of the bed portion, and means located in the recess between one of said arms and the bed portion and maintaining the unit spaced from the outer surface of the sash.

9. In a Window sash construction of substantially T-shape cross section having a web member and a pair of flange members extending laterally therefrom, a multiple glass sheet glazing unit mounted therein, and a substantially rectangular frame arranged in overlapping relation to the marginal edges of the unit, said frame being substantially Y-shaped in cross section and being provided with an extended portion positioned against one of said flange members and spacing the unit from the web member to provide a recess wherein glazing material may be located.

10. In a window sash construction of substantially T-shape cross section having a web member and a pair of flange members extending laterally therefrom, a multiple glass sheet glazing unit mounted therein, and a substantially rectangular frame of general Y-shape cross section retaining the unit within the sash, the arms of the Y being of unequal length and disposed in overlapping engagement with the marginal edges of the unit and the leg of the Y being positioned against one of the flange members and spacing the unit from the web member to provide a recess wherein glazing material may be located, said frame having an overall thickness not greater than the depth of the web member.

11. In a window sash construction of substantially T-shape cross section having a web member and a pair of flange members extending laterally therefrom, a multiple glass sheet glazing unit mounted therein, and a substantially rectangular frame of general Y-shape cross section retaining the unit within the sash, said frame comprising a pair of arms of unequal length within which the unit is carried and a portion extending from said arms and contacting one of said flange members and said web member to provide a recess between said latter member and one of said arms, said arm having a relatively short section engaging the marginal edge of the unit and a relatively longer section arranged against the ends of said unit, said unit having an overall thickness not greater than the depth of the web member.

12. In a window sash construction having a bed portion and stop extending perpendicularly therefrom, a multiple glass sheet glazing unit mounted therein, a substantially rectangular frame arranged in overlapping relation to the marginal edges of the unit, said frame being substantially U-shaped in cross section and being provided with a portion positioned against the sash stop and spacing the unit from the sash bed portion to provide a recess between said portion and said frame, and means located in the recess and maintaining the unit spaced from the outer surface of the sash.

13. In a window sash construction having a bed portion and stop extending perpendicularly therefrom, a multiple glass sheet glazing unit mounted therein, a substantially rectangular frame of general U-shape cross section retaining the unit within the sash, said frame comprising a pair of legs of unequal length in contact with the marginal edges of the unit and a base section extending between said legs and angularly disposed with respect to the sash bed portion to provide a recess between said portion and said base section, and means located in said recess and maintaining one of said legs against the sash stop and the unit spaced inwardly from the outer surface of the sash.

References Cited in the file of this patent UNITED STATES PATENTS 1,124,778 Meuler Jan. 12, 1915 2,021,179 Fox Nov. 19, 1935 2,030,869 Haven Feb. 18, 1936 2,235,680 Haven et a1 Mar. 18, 1941 2,618,819 Goodwillie Nov. 25, 1952 

